ashb commented on code in PR #68624:
URL: https://github.com/apache/airflow/pull/68624#discussion_r3421947116


##########
airflow-core/tests/unit/serialization/test_helpers.py:
##########
@@ -46,6 +46,27 @@ def 
test_serialize_template_field_truncation_kicks_in(monkeypatch):
 
     assert "Truncated. You can change this behaviour" in result
 
[email protected]_redact
+def 
test_serialize_template_field_masks_dotted_sensitive_keys_on_truncation(monkeypatch):
+    """Dotted config keys like spark.hadoop.*.access.key must be masked even 
when field is truncated."""
+    monkeypatch.setenv("AIRFLOW__CORE__MAX_TEMPLATED_FIELD_LENGTH", "1500")
+
+    access_key_value = "AKIA-REGRESSION-FIXTURE-ACCESS-KEY"
+    token_value = "REGRESSION-FIXTURE-JWT-TOKEN-VALUE"
+
+    payload = {
+        "spark.hadoop.fs.s3a.bucket.spark.access.key": access_key_value,
+        "spark.sql.catalog.kometa.token": token_value,
+        "zpadding": "z" * 2000,  # forces truncation
+    }
+
+    result = serialize_template_field(payload, "conf")
+
+    assert isinstance(result, str)
+    assert "Truncated. You can change this behaviour" in result
+    assert access_key_value not in result, "S3 access key must not appear in 
truncated output"
+    assert token_value not in result, "JWT token must not appear in truncated 
output"
+    assert "***" in result

Review Comment:
   ```suggestion
       assert "***" in result
   
   ```



##########
airflow-core/tests/unit/serialization/test_helpers.py:
##########
@@ -46,6 +46,27 @@ def 
test_serialize_template_field_truncation_kicks_in(monkeypatch):
 
     assert "Truncated. You can change this behaviour" in result
 
[email protected]_redact

Review Comment:
   ```suggestion
   
   @pytest.mark.enable_redact
   ```



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